The 2017 Volvo XC90 benefits from a handsome, sculpted look that goes much deeper than the sheetmetal. Nowhere is this more obvious than under the hood, where the goals of improved fuel economy and improved power are seemingly at odds with one another. Power comes from a 2.0L engine that is both turbocharged and supercharged. The result is an almost-unbelievable 318 horsepower with fuel economy ratings of 20 mpg in the city and 25 mpg on the highway. All of those numbers are up significantly since 2014, when the XC90 was still powered by a larger, less powerful 6-cylinder engine, showing just ...